![]() When viewed through passive-polarized glasses, each eye sees full resolution. This is very much like the RealD commercial-cinema system that places a switching polarizer in front of the projector lens that alternates polarization in sync with the projector as it displays the left and right images sequentially. RealD's solution is to place an active, switching polarizer in front of the screen that quickly alternates the polarization in sync with the panel as it displays the left and right images sequentially. As a result, each eye sees only half the lines on the screen, and if you sit close enough for full 3D immersion, you can see thin, black, horizontal lines in the image. This filter polarizes each line of the image alternatelythat is, the odd-numbered lines are polarized one way for the left image, while the even-numbered lines are polarized the other way for the right image, and each lens of the passive glasses allows the corresponding eye to see only the appropriate set of lines. Among the biggest announcements at the show was a partnership between Samsung and RealD to develop a new type of 3D flat panel that uses passive glasses but does not cut the vertical resolution in half like other passive-3D flat-panel technologies.Īs I explained in a previous blog, most passive-3D flat panels place a filter called a film pattern retarder (FPR) in front of the LCD screen. ![]() This week, the Society for Information Display (SID) is holding its annual DisplayWeek confab at the Los Angeles Convention Center, where the future of display technology is front and center.
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